Technical information of the Sandvik tool invites you to get acquainted with innovative methods of application of this or that technology. Also, the technical information of the Sandvik tool will acquaint you with the technical characteristics of the tools and methods of their use. For example lathes, etc.
Turning allows you to produce cylindrical and shaped surfaces using a single-edged tool. The essence of turning is that the tool makes a relative longitudinal movement, and the workpiece rotates.
Turning is the most common process in metal cutting with a high level of optimization, which requires careful consideration of various factors.
Turning can be broken down into a series of basic operations (longitudinal turning, face machining and profiling), where specific tools, cutting modes and programming are required for the most efficient machining.
Review the following size and quality requirements for the workpiece:
After analyzing the features of the part, evaluate its characteristics:
Considerations for machine tools:
When parting and grooving, two important aspects are process reliability and productivity. With the right set-up and the selection of the right tools, many complications can be avoided. These include boss build-up, tool breakage, chip bunching, poor surface finish on complex groove parts, inappropriate coolant pressure, long overhangs and high vibration levels that can ultimately result in expensive parts being rejected. To overcome these difficulties and successfully complete
We have some guidelines for parting and grooving.
The following initial conditions affect the selection and application of parting and grooving tools.
Observe the following quality requirements for the groove or surface to be machined:
Having analyzed the quality requirements, estimate the parameters of the part:
Pay attention to the following parameters:
There are a variety of tapping methods and tools, selected based on part, profile and pitch.
Each threading method and tool has its own advantages in certain situations. To help you successfully and efficiently cut high quality threads, we have prepared a set of guidelines.
The underlying data below influences the choice of threading method and tool, as well as the conditions for their application.
Consider the following thread size and quality requirements:
After analyzing the thread parameters, evaluate the characteristics of the part:
Thread profile defines the geometry of the thread and is characterized by such parameters as diameters (outer, inner and middle), thread angle, lead, radius and lead angle. See definitions.
The most common thread shapes and profiles are shown in the table below.
Pay attention to the following parameters:
Each threading method has its own advantages in certain situations.
Over the years, milling has evolved into a machining method with an extremely wide range of operations. In addition to all traditional applications, milling is a powerful alternative for making holes, carving, machining cavities and surfaces that were previously sharpened, drilled and tapped.
The elements to be milled must be examined carefully. They can be located deeply requiring long overhangs, discontinuous surfaces and irregular material inclusions.
The surfaces of the workpieces can be cast skin or forging scale. A thin-walled part or the lack of the ability to securely hold the part requires the use of a specialized tool and processing method. To select the optimal cutting conditions, it is also necessary to analyze the workpiece material and its machinability.
When choosing a milling method, the type of equipment on which the processing will be performed is of great importance. End / shoulder milling
or grooves can be made on 3-axis machines, and for milling complex profiles, 4- or 5-axis machines are required.
Today, turning centers often allow milling with driven tools, while machining centers can often be used for turning. Thanks to the development of CAM systems, five-coordinate processing has become widespread. These systems add flexibility, but stability issues can arise.
Drilling is often performed at a late stage in the production process, when the cost of the part has already reached a certain level due to previous operations. This operation, which looks simple at first glance, is actually very complex and can lead to serious consequences in the event of improper operation or overloading of the instrument.
The three most important parameters when drilling a hole:
After analyzing the parameters of the hole itself, pay attention to the material of the workpiece, the shape of the part and the number of holes.
Lot size also affects drill selection.
Lot size also affects drill selection.
It is important to understand the principles of safe and productive
drilling holes on a specific machine.
The machine parameters influence the selection:
Productivity is influenced not only by grade and geometry, but also by tooling and the ability to securely and accurately clamp the tool. Always use the shortest drill bit and cutno.
Consider a modular tooling system designed for all operations, including all holemaking techniques. Thanks to this system, the same cutting tools and holders can be used for different types of processing and different machines. This allows for standardization of the machining process, applying a single tooling system for the entire workshop.
Minimum runout of the tool is essential for successful hole drilling. The maximum runout should not exceed 20 microns. The lack of beating guarantees the following:
Drill Type 1
Drill Type 2
2 diameters (pilot diameter + body diameter) Hole and chamfer. No step processing.
Drill Type 4
2 diameters (pilot diameter + body diameter) Pilot hole, chamfer and step
Drill type 5
3 diameters (pilot + step + body diameter) Pilot hole, step and chamfer. No processing step 2.
Drill type 6
3 diameters (pilot + body diameter) Pilot hole, step, chamfer and 2 step
The correct choice of drill is a guarantee of obtaining holes of the required quality at the lowest cost.
Below are the different types of holes that require different tools to cut:
Three different solutions are available for drilling small and medium-sized holes: solid carbide drills, indexable head drills and indexable drills. Hole accuracy, length and diameter are three important parameters to consider when choosing a drill type. Each solution has its own advantages in certain situations.
Three different options are available for drilling large holes with limited machine power:
When drilling large holes, the stability of both the workpiece and the machine is important. In addition, the torque and power of the machine can be limiting factors. In terms of productivity, hole drilling has a significant advantage: it is 5 times faster than helical interpolation milling. However, the trepanning drill can only be used for through holes. The cutters have minimum torque and power requirements.
Drilling pilot holes
Pilot drills are designed to be used with deep hole drills for maximum hole positioning accuracy and minimum runout.
Cutting speed and feed
The cutting rates and feed rates recommended for deep hole drills are calculated to provide good tool life combined with maximum productivity. The setpoints for the cutting speed and feed are the starting point for the machining process. In the future, they can be adjusted to achieve optimal results depending on the existing processing conditions.
Cutting speed and feed
KnowThe cutting speed and feed rates recommended when using small hole drills are designed to provide good tool life combined with maximum productivity. The setpoints for the cutting speed and feed are the starting point for the machining process. In the future, they can be adjusted to achieve optimal results depending on the existing processing conditions.
Coolant pressure is a key factor when drilling small holes. Improper coolant pressure or volume can cause premature tool failure. We strongly recommend working with high coolant pressure. The standard recommended coolant pressure is 40–70 bar.
Reaming is a high precision finishing operation performed with a multi-edge tool. High surface finish, excellent hole quality and dimensional accuracy are achieved even at high feed rates and shallow depths of cut.
When performing deployment operations, it is necessary to take into account a number of factors that affect the durability of the deployment:
For optimal results when using sweeps, it is important to “make them work”. A fairly common mistake when preparing holes for reaming is too little allowance. If the allowance in the hole is insufficient for reaming, the reamer will wear out and wear out quickly, resulting in a possible distortion of the hole diameter. In addition, for good results it is also important not to leave too much allowance in the hole.
Select the sweep type, sweep speed and sweep feed according to your situation. Ensure that the pre-holes are of the correct diameter
The workpiece must be rigidly fixed, and the machine spindle must not have any backlash.
The cartridge must be of adequate quality. If the reamer slips in the chuck, and the feed is carried out by an automatic machineManually, the scan may be damaged
Maintain a minimum overhang in relation to the machine spindle
Use recommended lubricants to increase tool life and ensure accurate fluid penetration on cutting edges. Since reaming is not a stressful operation, the use of a 40: 1 emulsion generally gives satisfactory results. Compressed air can be used when machining gray cast iron without coolant.
Do not block the reamer grooves with chips
Before dragging the flat pattern, be sure to check the center alignment. In most cases, regrinding only requires the cutting part.
Boring is a machining process aimed at increasing the diameter or improving the quality of an existing hole. For boring holes, there are several flexible tool systems with a wide range of diameters, suitable for both roughing and finishing.
The following important conditions affect the selection of boring tools and how they are used when boring holes.
The quality of the hole is influenced by the selected type of operation and the tool.
Be sure to take into account hole size and quality requirements, as well as existing restrictions:
Hole with tread
Intersecting holes,interrupted cutting
Define the type of operation – roughing or finishing:
Machines an existing hole and strip to prepare for finishing. The existing holes can be made by methods such as drilling, casting, forging and flame cutting. Hole tolerances greater than or equal to IT9.
Machining existing hole to achieve tight tolerances and high surface finish. Shallow depth of cut, typically less than 0.5 mm. Hole tolerances IT6 to IT8.
Define workpiece type
Form and quality:
Important machine characteristics:
When machining any materials, the correct choice of tool material (grade) and insert geometry in accordance with the characteristics of the workpiece is an important condition for successful high-performance machining. Other parameters – cutting data, tool path
etc. – also affect the final result
In metalworking, the correct calculation of the values of various parameters such as cutting speed and spindle speed is crucial
factor in obtaining the optimal result of the work of cutting tools.
This section contains the most important formulas and definitions for the following processing areas:
More details can be found on the catalog page.
We know that you have to make hundreds of good decisions and that in your day-to-day work, you perform very difficult tasks. That’s why Sandvik Coromant offers several cutting data calculators and mobile apps to guide you through the entire production process. Find out how our digital do-it-yourself solutions can help you.
Preparing for processing
Get instrument recommendations in CoroPlus® ToolGuid
Find the recommended starting values for cutting data by scanning the barcode on the insert box with the Starting Values app
Create a tool assembly for programming and simulation online with the CoroPlus® ToolLibrary
Calculate the optimal cutting parameters for turning, drilling, milling and tapping with the Cutting Data Calculators
Find tools and calculate tool deflection for long overhang turning with the Silent Tools ™ Turning Calculator
Calculate machining parameters for a long overhang turning operation with the Silent Tools ™ Three-Pass Calculator
Most of Sandvik Coromant’s DIY digital services are available on the iFind mobile app
Determine the cause of tool wear with the Tool Wear Analyzer
Calculate your ROI with the ROI Calculator
Calculate your return on investment for your Coromant Capto® tool with the Coromant Capto® Calculator
Calculate the profitability of your metal cutting tools with the Manufacturing Economics Calculator
Find a replacement for your current tool among Sandvik Coromant tools using Insert ID
Save selected pages of the site and share them with colleagues through My catalogs
Adapt the cutting tool to your specific needs and quickly get a quote with the Tailor Made Online Customizer